How many chill hours does 80456 get?

80456 averages 896 chill hours per winter, ranging from 517 to 1246 across the last 10 years.

What hardiness zone is 80456?

80456 is in USDA hardiness zone 5a.

Location almanac

The short answer

80456 averages 896 chill hours per winter (517–1,246 across 10 years) in USDA zone 5a.

80456 climate
Average chill hours	896 (517–1,246 across 10 winters)
USDA hardiness zone	5a
Last spring frost	typically June 2 – June 24
First fall frost	typically September 11 – September 25

Computed from 10 winters of ERA5 hourly temperature (Open-Meteo, 2015–2025); zones from USDA PHZM 2023. Data updated July 3, 2026. See methodology.

Every variety in our database, checked against 80456’s chill hours and zone:

Chill and zone requirements are comfortably met in 80456.

Show 116 more good fit varieties

Possible in a good year or a favorable microclimate — click through for the caveats.

How many chill hours does 80456 get?: 80456 averages 896 chill hours per winter, ranging from 517 to 1246 across the last 10 years.
What hardiness zone is 80456?: 80456 is in USDA hardiness zone 5a.

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[1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
[2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026